The Anthophyte hypothesis states that this group is a sister group to the Gnetales, but current thought is that an extinct group like the Bennettitales is the true sister of this group. The most basal member of this group is Amborella, a shrub that notably lacks a synapomorphy of this group, the presence of vessel elements in its xylem. Nymphales is another member of this group that lacks a synapomorphy- in that case it is double fertilization, in which one sperm fuses with the egg cell while another sperm, from the same gametophyte, fuses with the two polar nuclei in the embryo sac, forming the endosperm. One clade within this group has triculpate pollen and makes up about 75% of the species in this group. Those ar
The Anthophyte hypothesis states that this group is a sister group to the Gnetales, but current thought is that an extinct group like the Bennettitales is the true sister of this group. The most basal member of this group is Amborella, a shrub that notably lacks a synapomorphy of this group, the presence of vessel elements in its xylem. Nymphales is another member of this group that lacks a synapomorphy- in that case it is double fertilization, in which one sperm fuses with the egg cell while another sperm, from the same gametophyte, fuses with the two polar nuclei in the embryo sac, forming the endosperm. One clade within this group has triculpate pollen and makes up about 75% of the species in this group. Those are the eudicots. For 10 points, name this group of plants that, unlike gymnosperms, produces flowers.
The Anthophyte hypothesis states that this group is a sister group to the Gnetales, but current thought is that an extinct group like the Bennettitales is the true sister of this group.
{Angiosperms}